Results 31 to 40 of about 15,905 (167)
Impact of race‐based customization on detection of fetal growth restriction
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 480-485, October 2025.ABSTRACT Objective Fetal growth standards determine which fetuses are diagnosed with fetal growth restriction (FGR) and become candidates for enhanced fetal monitoring. Given the existence of race‐based differences in fetal and neonatal weights, we sought to determine the impact of race‐based customization of fetal growth curves on the antenatal ...
P. Ramesh, L. Lemon, J. C. Larkin
wiley +1 more source
Study on the On-line Photochemical Derivatization-Fluorescence Determination in HPLC and the Mechanism Investigation [PDF]
, 2010 光化学衍生（photochemicalderivatization,PCD）分析法是基于光化学反应而建立的一类分析方法。它以其独特的衍生方式与传统的荧光、化学发光、紫外-可见、电化学等检测方法相结合，提高了原有方法的灵敏度与选择性，极大地拓展了传统检测方法的应用范围，在药物、复杂生物样品、环境样品分析测定等方面得到广泛应用。然而，已报道的光化学衍生方法中的光化学衍生装置比较简易，难于满足液相色谱柱后在线衍生对多种组分同时测定的需要；另一方面，大多分析工作者主要是从“表面”去优化光化学衍生的条件 ...
温裕云
core
Infant Mental Health Journal: Infancy and Early Childhood, Volume 46, Issue 5, Page 564-576, September 2025.Abstract Parental reflective functioning (PRF) is important in guiding parenting behavior. It is traditionally measured with interviews that are relatively time‐consuming. A self‐report measure of PRF, the Parental Reflective Functioning Questionnaire (PRFQ), has been developed but has not yet been extensively validated across different sociocultural ...
Marjo Flykt +4 more
wiley +1 more source
Dianci bileiqi, 2017 输电线路绝缘子串的性能对电力系统的稳定运行至关重要。为了实时、准确的检测输电线路中可能存在的劣化绝缘子,通过试验及仿真分析传感器材料及封装性等因素对检测精度的影响,优化了光学电场传感器对绝缘子周边电场强度的检测方法,在此基础上设计研制了劣化绝缘子在线检测装置。通过现场试验,验证了该检测装置能够实时、有效的检测出绝缘子串是否存在劣化情况。
祝永坤 +6 more
doaj
Numerical Simulation And Experiment Study On Magnetoacoustic Emission with Magnetic Induction [PDF]
, 2015 铝合金板材具有高强度、低密度、强耐腐蚀、高断裂韧性和良好的高低温特性等优点，是制造宇宙飞船、运载火箭、飞机、舰船、坦克、装甲车和高速列车的主要材料。然而，由于加工工艺限制，铝合金板材在生产过程中不可避免地存在分层、夹杂、裂纹和氧化膜等缺陷。无损检测技术是一种在不破坏待测物材质与性能前提下实现构件质量检测的技术，目前已在许多领域成为确保产品质量和可靠性的强制性措施。 本文研究的感应式磁声发射无损检测方法是利用线圈在导体感应出的涡流在静态磁场的作用下会受到洛仑兹力的作用使导体发生机械振动，进而产生磁声信号 ...
李超
core
Online detection and sorting of passion fruit quality based on machine vision using multi-indicator [PDF]
[Objective] Refining the accuracy and intelligence of passion fruit quality assessment. [Methods] The study used the capabilities of OpenCV along with a compact neural network architecture, MobileNetV3_large_ssld, to accurately determine the fruit's ...
CHU Xuan +4 more
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Integrative Conservation, Volume 4, Issue 3, Page 405-415, September 2025.Assessing the genetic diversity of edible insects harvested from the wild is a pre‐requisite for designing conservation and management policies. The caterpillars of Gynanisa maja (Saturniidae) are harvested in large numbers in mopane woodlands in southern Africa, where they represent a seasonal source of income and nutrition to many rural communities ...
Zwannda Nethavhani +3 more
wiley +1 more source
Gaoya dianqi, 2016 为解决输电线路绝缘子在线检测问题,设计了低/零值绝缘子带电检测机器人。确保检测机器人在强电场中能够解决在线检测问题,运用ANSYS仿真软件建立750 k V输电线路的U300B/195悬式钢化绝缘子,以及机器人抓手、环氧树脂板和分裂导线等部件的仿真模型,并对机器人检测装置进行电场计算分析。研究结果表明:环氧树脂板与铝垫片交接处场强畸变严重;修整后的环氧树脂板可较大程度减小其内部以及表面的电场;检测装置会影响绝缘子周围的电场分布,但不会影响其绝缘性能;检测机器人能够测量绝缘子绝缘阻值。
邹明 +4 more
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Integrative Conservation, Volume 4, Issue 3, Page 302-309, September 2025.We discussed the key assumptions of Distance sampling that were considered hard to meet in mountainous terrains and potential solutions for them. Our survey yielded comparable estimates from distance sampling and double‐observer survey, although the confidence interval from distance sampling was broader.
Lingyun Xiao +4 more
wiley +1 more source
Gaoya dianqi, 2003 为了保证XLPE电缆的可靠运行,在线检测电缆绝缘意义重大。笔者综述了XLPE电缆最常用的3种检测方法,分析了每种检测方法的优点和实际应用中存在的问题,并介绍了国外XLPE电缆在线检测方面的最新动态。
陈巧勇, 文习山, 王一, 张云建
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